public class Test03 {
    //https://leetcode.cn/problems/sum-of-two-integers/description/
    public int getSum(int a, int b) {

        while(b != 0 ){
            int add = a ^ b;
            int tmp = (a & b) << 1;
            a = add;
            b = tmp;
        }
        return a;

    }
}
